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30221201020120 = 23511376130431789
BaseRepresentation
bin1101101111100011010111…
…11100111001010011011000
310222000010012110102212002221
412313301223330321103120
512430121004430120440
6144135232244433424
76236260351134415
oct667615374712330
9128003173385087
1030221201020120
1196a1815124490
1234810a30a8874
1313b2b01bc6936
147669dd06b10c
153761c9656d4a
hex1b7c6bf394d8

30221201020120 has 128 divisors (see below), whose sum is σ = 77433081019200. Its totient is φ = 10517225932800.

The previous prime is 30221201020099. The next prime is 30221201020121. The reversal of 30221201020120 is 2102010212203.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30221201020094 and 30221201020103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221201020121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14222815 + ... + 16208974.

Almost surely, 230221201020120 is an apocalyptic number.

It is an amenable number.

30221201020120 is an abundant number, since it is smaller than the sum of its proper divisors (47211879999080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30221201020120 is a wasteful number, since it uses less digits than its factorization.

30221201020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30431909 (or 30431905 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 30221201020120 its reverse (2102010212203), we get a palindrome (32323211232323).

The spelling of 30221201020120 in words is "thirty trillion, two hundred twenty-one billion, two hundred one million, twenty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 37 40 44 55 61 74 88 110 122 148 185 220 244 296 305 370 407 440 488 610 671 740 814 1220 1342 1480 1628 2035 2257 2440 2684 3256 3355 4070 4514 5368 6710 8140 9028 11285 13420 16280 18056 22570 24827 26840 45140 49654 90280 99308 124135 198616 248270 496540 993080 30431789 60863578 121727156 152158945 243454312 304317890 334749679 608635780 669499358 1125976193 1217271560 1338998716 1673748395 1856339129 2251952386 2677997432 3347496790 3712678258 4503904772 5629880965 6694993580 7425356516 9007809544 9281695645 11259761930 12385738123 13389987160 14850713032 18563391290 20419730419 22519523860 24771476246 37126782580 40839460838 45039047720 49542952492 61928690615 68684547773 74253565160 81678921676 99085904984 102098652095 123857381230 137369095546 163357843352 204197304190 247714762460 274738191092 343422738865 408394608380 495429524920 549476382184 686845477730 755530025503 816789216760 1373690955460 1511060051006 2747381910920 3022120102012 3777650127515 6044240204024 7555300255030 15110600510060 30221201020120